If the wind is strong from the west...does anyone know if it's ok to overfly the buildings to the east of the site? Or do you have to remain clear of built up areas and accept an out-of-wind approach/departure?
The permission I have (for our twin engine, class A performance helicopter) states the following:
....in the event of failure of a power unit the said helicopter could alight without danger to persons or property on the surface at any time.
....any approach and departure path to and from the said site shall be directly from and to the River Thames.
... any landing or takeoff shall not be made closer than 20 metres from any person, vehicle or structure.
............................
If you pick the bones out of that, the answer to your question is probably, and perhaps unsurprisingly, NO - do
not overfly the buildings!